<AWT Dev> RFR: 8225116: Test OwnedWindowsLeak.java intermittently fails

[Sergey Bylokhov]

On Sat, 7 Nov 2020 06:55:09 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> This test rarely fails in the past on some configurations but was never a problem listed, and according to the history of CI, it fails 2 times on its own this year.
> 
> There are two possible reasons for the failure:
> 1. At that time we had a memory leak, which was fixed.
> 2. The test works too fast and it was not enough time for GC to eliminate 1000 windows.
> 
> To make the future evaluation simpler I enhanced the test and make it stricter, see some comments inline.

Any volunteers for a review?

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PR: https://git.openjdk.java.net/jdk/pull/1105